i.e., the DZT is periodic in \(n\)  with period \(L\)  up to a complex factor \(e^{j2\pi (k/K)m}\) . The DZT is therefore said to be quasi-periodic with quasi-period \(L\) . Due to the periodicity properties in (REF ) and (REF ), the DZT is fully determined by the DZT for \(0\le n \le L-1\)  and \(0\le k \le K-1\) , which is referred to as the fundamental rectangle [1]}.
